A compound represented by Formula (I) or a salt thereof: wherein, R1 represents a hydrogen atom, a substituted or unsubstituted C1-6 alkyl group and so on； R2 represents a hydrogen atom, or a C1-6 alkyl group, R3 and R4 each independently represent a hydrogen atom, or a C1-6 alkyl group, R5 represents a substituted or unsubstituted C1-6 alkyl group and so on； Y represents a C1-6 haloalkyl group, X represents a halogeno group, a C1-6 alkyl group and so on； and n represents the number of chemically acceptable X, and is an integer of 0 to 4, and when n is 2 or more, X may be the same as or different from each other.本發明係一種式(I)所表示之化合物或其鹽。式(I)中，R1係氫原子、經取代或未經取代之C1~6烷基等，R2係氫原子或C1~6烷基，R3及R4分別獨立地為氫原子或C1~6烷基，R5係經取代或未經取代之C1~6烷基等，Y係C1~6鹵烷基，X係鹵素基(halogeno group)、C1~6烷基等，n表示化學上所容許之X的個數，為0~4之任一整數，且於n為2以上時，X相互可相同亦可不同。
